DE3478581D1 - A method of rolling transverse ribbed tubes and a set of tools for rolling transverse ribbed tubes - Google Patents
A method of rolling transverse ribbed tubes and a set of tools for rolling transverse ribbed tubesInfo
- Publication number
- DE3478581D1 DE3478581D1 DE8484103535T DE3478581T DE3478581D1 DE 3478581 D1 DE3478581 D1 DE 3478581D1 DE 8484103535 T DE8484103535 T DE 8484103535T DE 3478581 T DE3478581 T DE 3478581T DE 3478581 D1 DE3478581 D1 DE 3478581D1
- Authority
- DE
- Germany
- Prior art keywords
- ribbed tubes
- rolling transverse
- transverse ribbed
- tools
- rolling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
- B21C37/207—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with helical guides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Forging (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL24132483A PL139849B1 (en) | 1983-03-31 | 1983-03-31 | Method of rolling of transversally finned pipes and set of tools therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3478581D1 true DE3478581D1 (en) | 1989-07-13 |
Family
ID=20016489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484103535T Expired DE3478581D1 (en) | 1983-03-31 | 1984-03-30 | A method of rolling transverse ribbed tubes and a set of tools for rolling transverse ribbed tubes |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0121252B1 (en) |
CS (1) | CS247078B2 (en) |
DE (1) | DE3478581D1 (en) |
HU (1) | HU197237B (en) |
PL (1) | PL139849B1 (en) |
RO (1) | RO89288A (en) |
SU (1) | SU1268094A3 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1084142A (en) * | 1900-01-01 | |||
US3683656A (en) * | 1970-03-25 | 1972-08-15 | Carl M Lewis | Heat exchanger apparatus and method of making the same |
PL79817B1 (en) * | 1973-11-22 | 1975-08-30 | ||
ZA764761B (en) * | 1976-08-09 | 1978-01-25 | Heat Exchangers Africa Ltd | Finned tubing |
PL113419B1 (en) * | 1977-01-26 | 1980-12-31 | Zaklad Doswiadczalny Przy Zakl | Method of rolling transversely finned pipes and workingtool therefor |
-
1983
- 1983-03-31 PL PL24132483A patent/PL139849B1/en unknown
-
1984
- 1984-03-29 SU SU843716506A patent/SU1268094A3/en active
- 1984-03-30 HU HU129884A patent/HU197237B/en not_active IP Right Cessation
- 1984-03-30 CS CS243384A patent/CS247078B2/en unknown
- 1984-03-30 DE DE8484103535T patent/DE3478581D1/en not_active Expired
- 1984-03-30 EP EP19840103535 patent/EP0121252B1/en not_active Expired
- 1984-03-31 RO RO84114139A patent/RO89288A/en unknown
Also Published As
Publication number | Publication date |
---|---|
SU1268094A3 (en) | 1986-10-30 |
RO89288A (en) | 1986-03-15 |
EP0121252A2 (en) | 1984-10-10 |
CS247078B2 (en) | 1986-11-13 |
EP0121252A3 (en) | 1987-05-27 |
HU197237B (en) | 1989-03-28 |
PL241324A1 (en) | 1984-10-08 |
HUT38065A (en) | 1986-04-28 |
PL139849B1 (en) | 1987-02-28 |
EP0121252B1 (en) | 1989-06-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |